Phase correlation in nondegenerate parametric oscillators and amplifiers - Theory and applications

Details Phase correlation in nondegenerate parametric oscillators and amplifiers - Theory and applications Phase correlation in nondegenerate parametric oscillators and amplifiers - Theory and applications

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrva..37.1991b&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 37, March 15, 1988, p. 1991-2006. Research supported by t

Physics

General Physics

12

Gravitational Wave Antennas, Light Amplifiers, Optical Communication, Oscillators, Parametric Amplifiers, Phase Coherence, Fourier Analysis, Quadratures, Signal Processing, Squeezed States (Quantum Theory), Nonclassical States Of The Electromagnetic Field, Including Entangled Photon States, Quantum State Engineering And Measurements, Frequency Conversion, Harmonic Generation, Including Higher-Order Harmonic Generation

Scientific paper

The phase-fluctuation correlation between the signal and idler fields in nondegenerate parametric optical amplifiers and oscillators is analyzed. It is shown that close to the threshold pump power, the correlation is sufficient to reduce the phase fluctuations below those of a coherent state. The phase-fluctuation correlation is negative due to the simultaneous phase matching and energy conservation. This restricts the usefulness of the correlation. The pump source's phase noise will furthermore set a limit to the mminimum achievable phase spectral density. The conditions for surpassing the standard quantum limit are elaborated. Finally, applications to coherent optical communication and gravitational wave detection are discussed.

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